USDA Hardiness Zone 7b
Frost Dates for 73059 — Minco, Oklahoma
NOAA 1991–2020 normals from Minco 2SSW Mesonet, OK (1,410 ft), 4 miles southeast.
Updated
In Minco, the last spring frost (32°F) is around April 3 in half of years and has passed by April 19 in nine years out of ten. The first fall frost comes around November 5, as early as October 22 one year in ten, leaving a typical freeze-free season of 216 days (NOAA, Minco 2SSW Mesonet, OK).
- Last spring frost
- April 3
- First fall frost
- November 5
- Growing season
- 216 days
- Hardiness zone
- 7b
50% probability
50% probability
freeze-free, 50%
5 to 10°F (-15.0 to -12.2°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 31%
- Snow per year
- 1.8"
median, 1991–2020
median, 1991–2020
5 of 16 observed
NOAA normal
Frost risk by date in Minco
Half of springs at Minco 2SSW Mesonet, OK see their last 32°F night by April 3; only one in ten is past it by March 17, and one in ten still has one after April 19. Planting tender crops after April 9 leaves a 30% risk of a frost on them, after April 13 20%, and after April 19 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 61% of the 114 Oklahoma stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 5 in half of years, as early as October 22 one year in ten, and holds off past November 20 one year in ten. A hard freeze of 28°F follows 9 days later, around November 14; in spring the one-in-ten date for 28°F is April 8, 11 days before the 32°F one. The freeze-free season lasts 216 days in a typical year, longer than at 65% of the 114 Oklahoma stations; it reaches 238 days one year in ten and falls short of 194 one year in ten. On average 76 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 11 days longer, to about April 14, and return around October 28. Severe cold of 16°F or below comes in 98% of winters, usually between December 18 and February 12.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 29 | Apr 3 | Apr 6 | Apr 10 | Apr 14 | Apr 17 | Apr 20 | Apr 23 | Apr 28 |
| 32°F | Mar 17 | Mar 23 | Mar 28 | Mar 31 | Apr 3 | Apr 6 | Apr 9 | Apr 13 | Apr 19 |
| 28°F | Mar 2 | Mar 9 | Mar 13 | Mar 18 | Mar 22 | Mar 26 | Mar 30 | Apr 3 | Apr 8 |
| 24°F | Feb 19 | Feb 26 | Mar 1 | Mar 5 | Mar 9 | Mar 12 | Mar 16 | Mar 20 | Mar 28 |
| 20°F | Jan 31 | Feb 11 | Feb 18 | Feb 23 | Feb 27 | Mar 1 | Mar 4 | Mar 9 | Mar 14 |
| 16°F98% of yrs | Jan 14 | Jan 26 | Jan 31 | Feb 6 | Feb 12 | Feb 18 | Feb 23 | Mar 1 | Mar 7 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 12 | Oct 19 | Oct 22 | Oct 25 | Oct 28 | Oct 31 | Nov 2 | Nov 5 | Nov 10 |
| 32°F | Oct 22 | Oct 28 | Nov 1 | Nov 3 | Nov 5 | Nov 8 | Nov 11 | Nov 14 | Nov 20 |
| 28°F | Oct 30 | Nov 4 | Nov 8 | Nov 11 | Nov 14 | Nov 17 | Nov 21 | Nov 25 | Dec 1 |
| 24°F | Nov 6 | Nov 11 | Nov 15 | Nov 19 | Nov 24 | Nov 27 | Dec 1 | Dec 5 | Dec 11 |
| 20°F | Nov 14 | Nov 21 | Nov 26 | Dec 1 | Dec 4 | Dec 9 | Dec 13 | Dec 18 | Dec 24 |
| 16°F98% of yrs | Nov 24 | Dec 1 | Dec 7 | Dec 12 | Dec 18 | Dec 24 | Dec 30 | Jan 5 | Jan 15 |
Freeze probabilities 1991–2020 at Minco 2SSW Mesonet, OK, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 73059 →Compare Minco with another place →
Weather by month in Minco
July is the warmest month at Minco 2SSW Mesonet, OK, averaging 93°F by day and 70°F at night; January is the coldest at 50°F and 28°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 58% of years.
Warmth for growing adds up to 5,023 growing degree days a year (base 50°F), fewer than at 68% of the 114 Oklahoma stations. 38% of them (1,884) have built up by the end of June, and July adds the most, 984.
| Month | High °F | Low °F | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|
| Jan | 50 | 28 | 100% | 22 | 15 |
| Feb | 54 | 31 | 100% | 17 | 46 |
| Mar | 62 | 40 | 98% | 6 | 139 |
| Apr | 71 | 48 | 58% | 2 | 304 |
| May | 79 | 58 | 0% | 0 | 574 |
| Jun | 87 | 67 | 0% | 0 | 807 |
| Jul | 93 | 70 | 0% | 0 | 984 |
| Aug | 93 | 70 | 0% | 0 | 967 |
| Sep | 84 | 62 | 0% | 0 | 689 |
| Oct | 73 | 51 | 28% | 1 | 378 |
| Nov | 60 | 38 | 99% | 8 | 103 |
| Dec | 50 | 30 | 100% | 19 | 19 |
Monthly normals 1991–2020 at Minco 2SSW Mesonet, OK (1,410 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, El Reno 1 N, OK, 17 miles north of Minco, has a last frost 3 days later (April 6), a first frost 5 days earlier (October 31), a season 10 days shorter.
When it snows in Minco, Oklahoma
Measurable snow is rare here: only 5 of 16 winters from 1991 to 2020 recorded 0.1 inch or more at Amber, OK, 12.8 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 73059
| When | What to do |
|---|---|
| January 23 – February 6 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 6 – February 20 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 6 – March 20 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 3 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 13 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 22 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 5 onward | Plant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter. |
The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.
Where these figures come from
ZIP 73059 is 4 miles from Minco 2SSW Mesonet, OK, which stands at 1,410 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 73089 (Tuttle). The 2023 USDA Plant Hardiness Zone Map lists ZIP 73059 in zone 7b, the band where the coldest night of the year averaged 5 to 10°F (-15.0 to -12.2°C) over 1991–2020; a zone describes winter lows, not frost dates.
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.